HSS12X4X1/2 Steel Rectangular HSS — Section Properties

Dimensions

Property Value Unit
Height (h) 12 304.8 mm
Width (w) 4 101.6 mm
Wall Thickness (t) 0.5 12.7 mm
Area (A) 13.5 in² 87.1 cm²
Weight 48.85 lb/ft 72.7 kg/m

Elastic Section Properties

Property Strong Axis (X-X) Weak Axis (Y-Y) Unit
Moment of Inertia (I) 210 35.3 in⁴
Elastic Section Modulus (S) 34.9 17.7 in³
Plastic Section Modulus (Z) 46.7 20.9 in³
Radius of Gyration (r) 3.95 1.62 in

Torsional Properties

Property Value Unit
Torsional Constant (J) 105 in⁴
Warping Constant (Cw) 0 in⁶

Design Resources

Frequently Asked Questions

What is the weight of a HSS12X4X1/2 section? 48.85 lb/ft (72.7 kg/m).

What is the section modulus of HSS12X4X1/2? Sx = 34.9 in³, Zx = 46.7 in³ (strong axis). Sy = 17.7 in³, Zy = 20.9 in³ (weak axis).

What steel grade is standard for HSS12X4X1/2? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.

What is the moment of inertia of HSS12X4X1/2? Ix = 210 in⁴ about the strong axis and Iy = 35.3 in⁴ about the weak axis. The radius of gyration is rx = 3.95 in and ry = 1.62 in.

Related Pages


Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.